Multiple Choice
Periodic Table: Classifications — How did Dmitri Mendeleev originally organize the periodic table?
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4. Atoms and Elements
Periodic Table: Classifications
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In developing the periodic table, Dmitri Mendeleev predicted the existence and properties of an undiscovered element he called eka-silicon. Which element was later discovered that matched this prediction?
A
Germanium (Ge)
B
Scandium (Sc)
C
Neon (Ne)
D
Gallium (Ga)
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